Hi, friends, hello everyone~ Recently, many development boards have been launched~~ The managers are busy making pages and preparing materials~~~ La la la~~ Everyone, when you visit the forum every da...
When debugging the pm2.5 module under esp8266, the UART0 interface was occupied by repl, and the system crashed after wiring. After checking the relevant information, I had an idea: UART0 is only occu...
[i=s] This post was last edited by ljj3166 on 2015-10-12 14:45 [/i] Continue Renesas' activities. I built a multi-purpose board in the early stage, and the basic functions are almost realized. After t...
In the attachment, Q1 uses a P-channel MOS tube, mainly to prevent the battery from being reversed. The parasitic diode of the MOS tube is used to make VGS greater than the gate-source threshold and t...
8 independent interrupt buttons. After the interrupt, first perform delay anti-shake, and then check which button is pressed. After the button check, determine whether the button is released. If relea...
When there are multiple slaves connected to the 485 communication bus, several slaves start running first and run normally, and can send and receive data; then when more slaves are powered on, they se...
The rapid development of the Internet has realized high-speed information transmission and resource sharing, greatly facilitating people's lives. Embedded systems are widely used in various electr...[Details]
All electronic design engineers and scientists have performed electrical signal analysis, or signal analysis for short. Through this basic measurement, they can gain insight into signal details and...[Details]
introduction
Solar cells and LED lighting are typical applications of new energy and energy-saving and efficient technologies. Solar LED lighting uses solar cells to convert solar energy...[Details]
1. Introduction
At present, most lighting equipment still uses traditional energy for lighting. Making full use of solar energy as the energy supply for lighting equipment is of great si...[Details]
Overview:
This paper introduces a method of connecting a CAN-bus network with Ethernet to form a medium-sized remote monitoring/data transmission network.
CAN (Controller Area Network) is ...[Details]
Many battery-powered systems require a visual indicator to show when the battery needs to be replaced. LEDs are commonly used for this purpose, but they consume at least 10mA of current. This con...[Details]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
0 Introduction
In the design and construction of communication systems,
communication power supply
is called the heart of the communication system. The power supply system will dire...[Details]
LonWorks fieldbus technology is widely used, for example, in intelligent buildings, industrial control, environmental protection, etc. Echelon's LonWorks system has been used in the products of tho...[Details]
1 Introduction
Lijia'an Yellow River Diversion Culvert is a large gravity diversion gate in the lower reaches of the Yellow River. The Yellow River Diversion Culvert is located in Lijia'an Vi...[Details]
1. Introduction
Stepper motor is a basic component that converts electrical energy into kinetic energy. It has been widely used in a variety of electromechanical equipment, such as various machine...[Details]
During the global semiconductor industry recession, the automotive electronics market has performed strongly, especially the application of car remote control systems has become more and more wides...[Details]
1 Features
1.1 Single cell operating voltage up to 3.7V
It is three times that of nickel-cadmium batteries and nickel-metal hydride batteries, and nearly twice that of lead-acid batteries...[Details]
Special Edition for Assessment Centres
京公网安备 11010802033920号
EEWORLD
